Step 1:
The first step to converting 1593290.432446 to a fraction is to re-write 1593290.432446 in the form p/q where p and q are both positive integers. To start with, 1593290.432446 can be written as simply 1593290.432446/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 1593290.432446, which in this case is 6. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 1593290.432446/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 1593290.432446/1 each by 1000000:
Step 3:
Now the last step is to simplify the fraction (if possible) by finding similar factors and cancelling them out, which leads to the following answer for 1593290.432446 as a fraction:
1593290/1 / 1